vf_overlay_vulkan.c File Reference

#include "libavutil/random_seed.h"
#include "libavutil/opt.h"
#include "libavutil/vulkan_spirv.h"
#include "vulkan_filter.h"
#include "filters.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	OverlayVulkanContext

Macros
#define	OFFSET(x)   offsetof(OverlayVulkanContext, x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Functions
static av_cold int	init_filter (AVFilterContext *ctx)
static int	overlay_vulkan_blend (FFFrameSync *fs)
static int	overlay_vulkan_config_output (AVFilterLink *outlink)
static int	overlay_vulkan_activate (AVFilterContext *avctx)
static av_cold int	overlay_vulkan_init (AVFilterContext *avctx)
static void	overlay_vulkan_uninit (AVFilterContext *avctx)
	AVFILTER_DEFINE_CLASS (overlay_vulkan)

Variables
static const char	overlay_noalpha []
static const char	overlay_alpha []
static const AVOption	overlay_vulkan_options []
static const AVFilterPad	overlay_vulkan_inputs []
static const AVFilterPad	overlay_vulkan_outputs []
const FFFilter	ff_vf_overlay_vulkan

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(OverlayVulkanContext, x)

Definition at line 303 of file vf_overlay_vulkan.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 304 of file vf_overlay_vulkan.c.

Function Documentation

init_filter()

static av_cold int init_filter ( AVFilterContext *  ctx )

static

Definition at line 82 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_blend().

overlay_vulkan_blend()

static int overlay_vulkan_blend ( FFFrameSync *  fs )

static

Definition at line 203 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_init().

overlay_vulkan_config_output()

static int overlay_vulkan_config_output ( AVFilterLink *  outlink )

static

Definition at line 256 of file vf_overlay_vulkan.c.

overlay_vulkan_activate()

static int overlay_vulkan_activate ( AVFilterContext *  avctx )

static

Definition at line 273 of file vf_overlay_vulkan.c.

overlay_vulkan_init()

static av_cold int overlay_vulkan_init ( AVFilterContext *  avctx )

static

Definition at line 280 of file vf_overlay_vulkan.c.

overlay_vulkan_uninit()

static void overlay_vulkan_uninit ( AVFilterContext *  avctx )

static

Definition at line 289 of file vf_overlay_vulkan.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

overlay_vulkan

)

Variable Documentation

overlay_noalpha

const char overlay_noalpha[]

static

Initial value:

= {
    C(0, void overlay_noalpha(int i, ivec2 pos)                                )
    C(0, {                                                                     )
    C(1,     if ((o_offset[i].x <= pos.x) && (o_offset[i].y <= pos.y) &&
                 (pos.x < (o_offset[i].x + o_size[i].x)) &&
                 (pos.y < (o_offset[i].y + o_size[i].y))) {                    )
    C(2,         vec4 res = imageLoad(overlay_img[i], pos - o_offset[i]);      )
    C(2,         imageStore(output_img[i], pos, res);                          )
    C(1,     } else {                                                          )
    C(2,         vec4 res = imageLoad(main_img[i], pos);                       )
    C(2,         imageStore(output_img[i], pos, res);                          )
    C(1,     }                                                                 )
    C(0, }                                                                     )
}

Definition at line 51 of file vf_overlay_vulkan.c.

Referenced by init_filter().

overlay_alpha

const char overlay_alpha[]

static

Initial value:

= {
    C(0, void overlay_alpha_opaque(int i, ivec2 pos)                           )
    C(0, {                                                                     )
    C(1,     vec4 res = imageLoad(main_img[i], pos);                           )
    C(1,     if ((o_offset[i].x <= pos.x) && (o_offset[i].y <= pos.y) &&
                 (pos.x < (o_offset[i].x + o_size[i].x)) &&
                 (pos.y < (o_offset[i].y + o_size[i].y))) {                    )
    C(2,         vec4 ovr = imageLoad(overlay_img[i], pos - o_offset[i]);      )
    C(2,         res = ovr * ovr.a + res * (1.0f - ovr.a);                     )
    C(2,         res.a = 1.0f;                                                 )
    C(2,         imageStore(output_img[i], pos, res);                          )
    C(1,     }                                                                 )
    C(1,     imageStore(output_img[i], pos, res);                              )
    C(0, }                                                                     )
}

Definition at line 66 of file vf_overlay_vulkan.c.

Referenced by init_filter().

overlay_vulkan_options

const AVOption overlay_vulkan_options[]

static

Initial value:

= {
    { "x", "Set horizontal offset", OFFSET(overlay_x), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, .flags = FLAGS },
    { "y", "Set vertical offset",   OFFSET(overlay_y), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, .flags = FLAGS },
    { NULL },
}

Definition at line 305 of file vf_overlay_vulkan.c.

overlay_vulkan_inputs

const AVFilterPad overlay_vulkan_inputs[]

static

Initial value:

= {
    {
        .name         = "main",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = &ff_vk_filter_config_input,
    },
    {
        .name         = "overlay",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = &ff_vk_filter_config_input,
    },
}

Definition at line 313 of file vf_overlay_vulkan.c.

overlay_vulkan_outputs

const AVFilterPad overlay_vulkan_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
        .config_props = &overlay_vulkan_config_output,
    },
}

Definition at line 326 of file vf_overlay_vulkan.c.

ff_vf_overlay_vulkan

const FFFilter ff_vf_overlay_vulkan

Initial value:

= {
    .p.name         = "overlay_vulkan",
    .p.description  = NULL_IF_CONFIG_SMALL("Overlay a source on top of another"),
    .p.priv_class   = &overlay_vulkan_class,
    .p.flags        = AVFILTER_FLAG_HWDEVICE,
    .priv_size      = sizeof(OverlayVulkanContext),
    .init           = &overlay_vulkan_init,
    .uninit         = &overlay_vulkan_uninit,
    .activate       = &overlay_vulkan_activate,
    FILTER_INPUTS(overlay_vulkan_inputs),
    FILTER_OUTPUTS(overlay_vulkan_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 334 of file vf_overlay_vulkan.c.